The Seagate Expansion Portable hard drive offers an easy-to-use solution when you need to instantly add storage to your computer and take files on the go. Seagate external portable drives are compact and perfect for on-the-go. Instantly add more storage space to your computer and take large files with you when you travel. Set-up is straightforward, simply connect a single USB cable and you are ready to go. The drive is powered from the USB cable, so there is no need for an external power supply. There is no software to install and nothing to configure. Saving files is easy too, just drag-and-drop. It's not just easy to use, but it's fast and energy efficient too. Built-in power management ensures energy efficient operation.